The commercial sector of the wine industry stands to benefit the most from the recently announced free trade deal with Japan.

Because of the way the tariff is structured, premium wine prices won't be substantially altered once the tariffs are reduced.

Tim Kirk, from Clonakilla Winery at Murrumbateman in NSW, says the main benefits for premium winemakers will be in the raised profile of Australian goods being sold in Japan.

"The volume end of the industry is going to benefit from this arrangement," he said.

"But as more Australian goods come into Japan, more people are inclined to reach for an Australian product."

Over the next seven years, tariffs on wine from Australia will come down from 15 per cent to zero.

But Japan isn't a major export market for Australian wine. Last year, 9.4 million litres were exported there.

This compares with the 37 million litres sent to China and 238 million litres sent to the United Kingdom.

And while the the wine industry welcomes the Japan deal, the managing director of Kingston Estates in South Australia's Riverland, Bill Moularadellis, says China and Europe are the real prizes in terms of free trade.

"More than half of Australian wine exports go to Europe," he said.

"The opportunity for Australia to compete on a level playing field with Chile would mean that Australian wine exporters would receive $140 a tonne more for their grapes for all of the wine going into Europe."

Mr Moularadellis says for Australian wine exporters, the Chinese market represents the greatest opportunity for selling wine at higher price points, as well as commercial wines.

"All tariffs have a disproportionate impact on commercial wines, not the premium ones.

"Really, the opportunity is for Australia to grow our premium exports, even though they only represent 10 per cent of export volumes."